Small intestine: It is an organ that helps in the digestion and absorption of nutrients like vitamins, minerals, carbohydrates, fats, proteins, and water from the ingested food.
The absorption of nutrients in the small intestine is done by villi which can be described as small finger-like projections on the interior surface of the small intestine. They increase the surface area for the absorption of nutrients from the food and transport it to other parts of the body where they can be consumed accordingly.
Celiac disease: It is a digestive disorder caused due to gluten in which villi of the small intestine in the inner lining of the small intestine are destroyed due to which the nutrients can not be absorbed properly from the food and thus the body faces a deficiency in nutrients and lacks energy as they cannot be extracted properly from food.
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A student wanted to look at germination of five different seeds in vermiculite (a soil additive). He planted the seeds in identical containers and left them together in full sunlight. He gave each seed the same amount of water and charted the germination of each seed type. What is the independent variable in this experiment
The independent variable is the seed type. This cannot be changed while the other variables can be changed such as water, soil additive, and light.
Independent variables:
The variable which is not affected by the change in other variables at the time of study is called the independent variable. It is the cause of study. The dependent variables are the effect and are observed. These are dependent on the change in the independent variables. For example, seed type is an independent variable whereas germination which is the combined effect of light, water, and soil additive that determines the process of germination.
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NEED HELP I WILL FAIL
You are an anthropologist analyzing bone remains from the grave of an ancient female human. Within one of the bones, you find an unusually high concentration of collagen. What does this suggest about the ancient female? (2 points)
She broke a bone and then died before it was fully healed.
She broke a bone and then died a few hours later.
She broke a bone at a very young age, but it fully healed.
She broke a bone at a very young age, but it did not fully heal.
She broke a bone and then died before it was fully healed. Option A
What is collagen?The collagen is a substance that serves to strengthen the bones. However, if a person gets older, its production reduces thereby making the bones to weaken.
When a person breaks a bone, the body secretes a lot of collagen to help the bone to heal. Therefore, if there is a high concentration of collagen present, it indicates that she broke a bone and then died before it was fully healed. Option A
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Basil metabolism is responsible for what percentage of calories used by the body?.
The basal metabolism is responsible for 60% of calories used by the body.
Basal metabolism can be defined as the rate of energy usage by the body at a state of rest. This metabolism is essential to maintain vital functions of the body. These vital mechanisms include functions like cellular respiration, breathing, blood circulation and pumping of the heart. These functions include mechanisms of the body that are mostly involuntary. The maximum energy expenditure of of the body occurs while the body undergoes basal metabolism. Basal metabolism rate is a trait which is flexible and does not require monitoring by other systems in the body. Basal metabolism is also responsible for the maintenance of homeostasis in the body. Basal metabolism uses calories stored in the body to carry out vital functions.
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What is diffusion on
Answer:
diffusion is process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
Explanation:
A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.
In the context of joint mobilization techniques, for what are inferior femoral glides at 90 degrees of hip flexion used?
Hip Inferior Glide is used to improve hip flexion. The technique is performed in supine with the hip flexed to 90°.
This technique can be used for decreasing muscle spasm or pain, and is also useful to increase accessory joint movement for flexion and abduction movements.
By performing the therapy the clinician’s hands can be clasped at the superior proximal femur or a mobilization strap can be used to enhance grip and reduce sliding on subject's skin. The clinician can simply lean back to impart an inferior force to the femur with a counterforce of the shoulder on the distal femur.
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the activity of an enzyme might be increased by all of the following except the presence of other enzymes.
Answer:
the presence of lead
Explanation:
I hope this help
The activity of an enzyme might be increased by all of the following except lead, which is in option D. Lead is a heavy metal that can act as an inhibitor of enzymatic activity, so option D is correct here.
Enzymes are biological catalysts, which means they are molecules that speed up chemical reactions in living organisms without being consumed or altered in the process. Almost all biochemical reactions in cells require enzymes to proceed at a rate that is sufficient for life. They play a crucial role in various metabolic pathways, allowing cells to carry out essential processes such as breaking down nutrients, building cellular structures, and regulating cellular functions. The enzyme-substrate interaction is highly specific, like a lock and key. Only substrates with a complementary shape to the enzyme's active site can bind to it.
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Complete question is below,
The activity of an enzyme might be increased by all of the following except ________?
A. increase in substrate concentration.
B. a vitamin.
C. 2-4 degree increase in temperature.
D. lead.
The novel Parkinson's disease linked mutation G51D attenuates in vitro aggregation and membrane binding of alpha-synuclein, and enhances its secretion and nuclear localization in cells
PD linked mutation may cause neurodegeneration via different mechanism.
What is Novel Parkinson's disease linked mutation ?A novel mutation in the α-Synuclein (α-Syn) gene "G51D" was recently identified in two familial cases exhibiting features of Parkinson's disease (PD) and multiple system atrophy (MSA)
the G51D mutation significantly attenuates α-Syn aggregation in vitro.it disrupts local helix formation in the presence of SDS, decreases binding to lipid vesicles C-terminal to the site of mutation and severely inhibits helical folding in the presence of acidic vesicles.Learn more about Novel Parkinson's disease here:
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In a particular plant, leaf color is controlled by gene D. Plants with at least one D allele have dark green leaves and plants with the homozygous recessive dd genotype have light green leaves. A Dd plant is crossed with another Dd plant. The predicted offspring are represented by numbers in the Punnett square. Which box(es) correspond(s) to plants with a heterozygous genotype
Boxes 2 and 3 will correspond to plants with a heterozygous genotype
An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
What is Heterozygous genotype ?The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles (compound heterozygote)
In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive.Heterozygotes can get genetic disease, but it depends on the type of disease.Learn more about Heterozygous genotype here:
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why do you think the process of photosynthesis and respiration are interrelated?
Answer:
While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. The exchange of carbon dioxide and oxygen during photosynthesis (Figure below) and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at stable levels.
In a population that is in Hardy-Weinberg equilibrium, 49% of the population show the homozygous recessive genotype. The frequency of homozygous dominant individuals is:
The frequency of homozygous dominant individuals is: 42%
Hardy–Weinberg equilibrium (HWE) is a null model of the relationship between allele and genotype frequencies, both within and between generations, assuming no mutation, no migration, no selection, random mating, and infinite population size. To find the frequency of the recessive allele, we must first find the frequency of the dominant allele (p). According to the Hardy-Weinberg principle, the square root of the homozygous genotype frequency is equal to the allele frequency. The Hardy-Weinberg equation used to determine genotype frequencies is: p2 + 2pq + q2 = 1. Where 'p2' represents the frequency of the homozygous dominant genotype (AA), '2pq' the frequency of the heterozygous genotype (Aa) and 'q2' the frequency of the homozygous recessive genotype (aa).
Calculation:
q2 = 49
q= 0.7
According to Hardy–Weinberg equilibrium p + q= 1
p = 1 - q
1-0.7= 0.3
p2+ 2pq+q2=1
One can substitute the values
2pq= 2(0.3) (0.7) = 0.42
42% is the answer.
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If everyone on the planet used the same amount of resources as an average American, what percent of the Earth would need to be used to support everyone
If everyone on the planet used the same amount of resources as an average American, four Earths would be needed to sustain them.
What are Resources?These are the materials available in the environment which add quality and value to our life.
The earth comprises of resources which is limited and is therefore the reason why four earth will be needed to sustain them if everyone used the same amount.
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The function of the thyroid cartilage (Adam's apple) is to: Prevent food and liquid from entering the larynx Provide support for the larynx Provide support for the thyroid Separate the lungs in the chest cavity
The function of the thyroid cartilage (Adam's apple) is to: Provide support for the larynx.
The tough and elastic tissue frames the forward portion of the larynx (voice box). It upholds and safeguards the vocal cords and makes an individual's voice. The thyroid cartilage likewise shapes Adam's apple, which appears as a lump on the front of the neck.
This cartilage is the biggest of these ligaments. It encompasses the front of the voice box and windpipe. It is framed by two laminae (plates of cartilage) that are melded at the front - this structures the V-Shaped thyroid notch of the Adam's Apple. Throat cartilage is more prominent in men than females and serves as a defensive capability. Thyroid Cartilage is adaptable and furthermore serves as a protective function structure inside the Larynx.
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If this individual is limited in hip flexion due to posterior muscle tension, what could be done to increase hip flexion?
Kneel along with your left knee on the floor and your right leg at a 90-degree perspective in front of you. Put your hands on your proper knee and hold your back instantly. Keeping your left knee pressed to the floor, lean ahead into your proper hip even as squeezing the muscles to your left buttocks. maintain for 30 seconds.
No longer engaging in everyday bodily activity can result in weak hip flexors. Underuse of the hip muscles can cause the muscle to degenerate and become vulnerable, which is known as muscle atrophy.
The primary hip extensors consist of the gluteus maximus, posterior head of the adductor Magnus, and hamstrings. Within the anatomic role, the posterior head of the adductor Magnus has the best second arm for extension, observed intently by means of the semitendinosus.
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what is nanotechnology ?
Answer:
Nanotechnology is the branch of technology that deals with making structures that are less than 100 nanometres long. Scientists often build these structures using individual molecules of substances.
How would a biologist explain how an animal became well camouflaged to its environment?
More camouflaged individuals have the better chances of survival until all the individuals that remain are all well camouflaged.
What s natural selection?The term natural selection implies that organisms that we well adapted to their environment tend to survive better and have the opportunity to reproduce. This is based on the principle of the survival of the fittest.
These organisms tend to pass on these favorable traits to their offspring and thus the gene pool is changed as only the organisms that have these favorable genes remain.
If camouflage helps an organism to survive better in its habitat, then it follows that more camouflaged individuals have the better chances of survival until all the individuals that remain are all well camouflaged.
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Most gastric ulcers are caused by _____________.
a. excessive mental stress
b. overuse of aspirin and /or ibuprofen
c. overconsumption of alcohol
d. bacteria
Most of the gastric ulcers are caused by bacteria.
A sore when forms on the oesophageal, stomach, or small intestine lining. When stomach acid affects the lining of the digestive tract, ulcers develop. It is referred into three distinct ulcers-
An ulcer on the lining of the stomach or the first section of small intestine is referred to as a peptic ulcer.A gastric ulcer is referred to as such if it develops in stomach. Duodenal ulcers are those that occur in the duodenum.The causative agents of ulcer-
The majority of ulcers are brought on by an infection with the bacteria or germ H. pylori. The mucus that covers the lining of your stomach and the first portion of your small intestine is damaged by this bacteria (the duodenum)Another major reason are NSAIDs (non-steroidal anti-inflammatory drugs). These include over-the-counter painkillers and antipyretics such aspirin, ibuprofen, and naproxenLifestyle factors such as stress and alcohol consumptionThe answer to the most causative factor for gastric ulcer is d) bacteria.
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If the grasshoppers within a specific ecosystem are unable to detect vibrations, how will it affect that ecosystem?
If the grasshoppers within a specific ecosystem are unable to detect vibrations, they will not be able to communicate among themselves and defend against predators. This may lead to the loss of grasshoppers from the ecosystem.
What is vibrational communication?Sound is carried in the form of vibrations.Insects have sensory organs which help them to detect these vibrations.They interpret these sounds to communicate with each other and navigate through the environment.Vibrational signaling is the most common form of communication in insects which detects any mechanical disturbances in the surrounding environment.Some insects are even able to sense the sound of predators, thus are able to avoid them.Like many insects, grasshoppers have a pair of tympanal organs. These organs vibrate when they catch sound waves in the air. The larvae of grasshoppers use small stiff hairs called setae to sense sound vibrations.The caterpillars react to vibrations by exhibiting defensive posture.Learn about how animals communicate here:
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In class, your professor shows you the skulls of three mammals. In one, the eye would be fully enclosed by bone. In the second, there is a bony circle around where the eye goes, but it is open in the back. In the third, the place where the eye would be is not encircled by bone at all. This suggests to you that
This suggests to you that
The first one is an anthropoid primate; the fully enclosed orbit is probably beneficial in an organism that relies heavily on vision.
Anthropoids are a group of primates currently represented by New and Old World monkeys, great apes and humans. They differ from other groups of primates such as strepsirrhines (lemurs) by several dental and cranial features (postorbital closure, shorter muzzles, increased vision due to more frontal eye sockets, fused frontal bone). The common ancestor of living anthropoids - including monkeys, apes and humans - arose in Africa and that the group had already branched into many species at that time.
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Global warming would be an example of ___ factor in a firm's external environment.
Global warming would be an example of ecological factor in a firm's external environment.
Companies' responses have varied as a result of climate change emerging as one of the most significant challenges and causing increased uncertainty in the business community. Internal organisational capacities and external business unpredictability are the two elements that influence the implementation of carbon management practices towards environment . The managers and academics who are thinking about how to identify, design, and manage a firm's activities in response to the global warming challenge both within the organisation and with other organisations can refer to certain principles for sustainability.
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Explain why the simplest drawing to model the principle of independent assortment requires four chromosomes, but the simplest drawing to model the principle of segregation requires only two chromosomes
Independent assortment involves the independent segregation of the alleles of two separate genes on separate chromosomes.
What is the Principle of independent assortment How is it related to the Principle of segregation?
Understanding the law of segregation is necessary before defining independent assortment. According to the law of segregation, individual gamete cells receive two distinct, independently sorted genes during meiosis. On the other side, the random separation of the maternal and paternal DNA allows for a greater variety of genes.
Independent assortment refers to the independent segregation of two different genes' alleles on two different chromosomes. As a result, to create the simplest model of independent assortment, at least 4 chromosomes must be represented as two homologous pairs. On the other hand, only the two chromosomes of one homologous pair need to be drawn because segregation takes into account the separation of the two copies of a single gene carried on a single type of chromosome.
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Aseries of images displayed in sequence to create the illusion of movement is called ______________ .
Animation is the answer.
Animation is a method of manipulating a character and displaying it as a video. In traditional animation, you would draw or draw an image by hand on a transparent celluloid sheet, take a picture, or display it on film. Today, most animations are created using computer-generated images.
Animation is the quick display of a series of images to create the illusion of movement. The most common way to present an animation is as a movie film or video program. Simply put, animation brings our imagination to life.
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If a defibrillator manufacturer claims that its device terminates ventricular fibrillation on the first shock 95% of the time, you should:
If a defibrillator manufacturer claims that its device terminates ventricular fibrillation on the first shock 95% of the time, you should: recognize that this does not mean it will save more lives.
DefibrillatorThe purpose of defibrillators is to restore a normal heartbeat by shocking or sending an electric pulse to the heart. They are employed to stop or treat irregular heartbeats that are too slow or too fast, or arrhythmia. Defibrillators can also restart the heart's rhythm if it stops suddenly. Defibrillators operate differently depending on the type. People who are having cardiac arrest can be saved by using automated external defibrillators (AEDs), which are increasingly commonplace in many public areas. These gadgets can be used in an emergency by unskilled witnesses. People who have a high risk of developing a life-threatening arrhythmia may benefit from using other defibrillators to avoid sudden death.
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_____________ is the idea that an organ or device that evolved for one purpose was available to be used for another purpose.
Explanation:
the evolution is the idea that an organ or device that evolved for one purpose was available to be used for Another purpose
A simple protein that makes up approximately 58% of the plasma proteins. Many act as transport molecules.
Albumin
These are the most abundant and form about 60% of all plasma proteins. They contribute to osmotic pressure, help to control water balance and are involved in the transport of substances in blood including drugs.
What is Plasma protein ?Plasma protein is the collective term for the proteins present in the blood.
Plasma proteins fall into several different groups and have numerous functions, including maintaining osmotic pressure, and transporting lipids, hormones, vitamins, and minerals.Immunoglobulins help fight infection and various other small amounts of enzymes, hormones, and vitamins.Learn more about Plasma protein here:
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Positive selection tests to see if the ______ of a T-lymphocyte can recognize and bind to an MHC molecule.
Positive selection tests to see if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.
What is a T-lymphocyte?A T-lymphocyte is a special type of immune cell that is generated inside the bone marrow.
The T-cell receptor (abbreviated as TCR) is a protein located on these immune T lymphocytes.
In conclusion, Positive selection identifies if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.
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Suppose your gram-stained a sample from a pure culture of bacteria and observed a field of red and purple cocci. Adjacent cells were not always the same color. What would you conclude?
If after gram-staining a pure bacterial culture red and purple cocci are observed and the adjacent cells were not of the same colour, It means it's an old stock of culture.
The Gram stain process is a multi-step differential staining procedure. Differential staining separates organisms based on how they respond to various stains. To put it another way, two organisms in a sample that has been stained differently might appear to be different colours.
Gram-positive and Gram-negative are the two primary subtypes of bacteria. Based on how these bacteria respond to the Gram stain, several types are identified. The hue of a Gram stain is purple. The bacteria in a sample will either stay purple or change pink or red when the stain and bacteria interact.
The bacteria are Gram-positive if they continue to be purple.
The bacteria are Gram-negative if they turn pink or crimson.
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Proteins are polymers produced by linking together amino acids, where the amino group of one will react with the acid group of another. What type of functional group is produced
The Functional group produced is Amide.
The most typical way to make amides is by reacting an acid chloride with ammonia, a 1o amine, or a 2o amine. In a similar procedure, an amide can be created by reacting an amine with a carboxylic acid using a coupling agent like DCC. An acid anhydride and an amine can be combined to create simple amides. Finally, a carboxylic acid and an amine can directly react to generate amides.
However, because to the severity of the circumstances, this response is not frequently used. Because the Y group of an amide's nitrogen-containing atom has a weak ability to act as a leaving group, amides are comparatively inert to nucleophilic acyl substitutions.
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Identify the highlighted artery. Identify the highlighted artery. right coronary marginal circumflex left coronary
Highlighted artery is right coronary.
What is artery?The blood channels that carry oxygen-rich blood from the heart to the body's tissues are called arteries. Each artery consists of three layers and is a muscular tube bordered by smooth tissue. The endothelium, a smooth tissue, lines the intima, the inner layer.Blood is transported from your heart through arteries.All body parts have arteries, with the exception of the hair, nails, epidermis, cartilages, and cornea. In the limbs, they run along the flexor surface, where they are less vulnerable to injury, and the larger trunks typically occupy the most protected positions.A conduit that carries blood from the heart to the body's extremities is called an artery. Every artery, with the exception of the pulmonary artery, carries oxygenated blood. The ascending aorta, aortic arch, thoracic aorta, and abdominal aorta are the four divisions of the aorta, which is the biggest artery in the body.
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Which of the following describes way that humans decrease biodiversity?
1. We encroach on habitat.
II. We poach wild animals.
III. We use food resources faster than native species.
OI, II, and III
OI and III
OII and III
Oll only
Answer:
I, II and III
Explanation:
I believe that all the options given are ways in which humans decrease biodiversity.
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Have a nice day:)
Answer: 1 2 and 3! no ca
Explanation:
there are more protons than electrons in a negatively charged atom, true or false
whoever answers this, thank you so much!
Answer:
Electrons
Explanation:
Electrons are negatively charged, so if an atom is negatively charged, there will be more
Answer:
False
Explanation:
The answer is False.
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